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Shutter-release parameter for
One-Shot AF
[Set in the AF3 tab]
[One-Shot AF release priority]
Focus priority
You cannot shoot a picture unless the camera has confirmed
sharp focus. It is effective when you want to shoot only after
ensuring sharp focus. This is the factory-default setting for One-
Shot AF in most EOS cameras.
Release priority
Priority with One-Shot AF is on shutter timing when you press
the button, rather than pausing to ensure sharpest focus. It is
recommended only when you want to put priority on capturing
split-second photo opportunities, and sharpness is less
important — as may be the case in certain types of news
photojournalism.
